#15437C#15437C

#15437C is a dark, moderate cyan. Relative luminance 0.056; OKLCH L 38.5% C 0.109 H 255.9°. Best body text is #FFFFFF at 9.88:1 contrast (WCAG AA passes).

Color values

HEX	#15437C
RGB	rgb(21, 67, 124)
HSL	hsl(213, 71%, 28%)
HSV	hsv(213, 83%, 49%)
CMYK	cmyk(83.1%, 46%, 0%, 51.4%)
CIE-LAB	lab(28.45, 6.95, -36.73)
CIE-LCH	lch(28.45, 37.39, 280.72°)
OKLab	oklab(38.51% -0.0264 -0.1053)
OKLCH	oklch(38.51% 0.109 255.9)
XYZ	xyz(5.9532, 5.6283, 19.8375)
Luminance	0.0563 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#15437C #7C4E15

analogous

#15767C #15437C #1B157C

triadic

#15437C #7C1543 #437C15

tetradic

#15437C #7C1576 #7C4E15 #157C1B

square

#15437C #7C1576 #7C4E15 #157C1B

split-complementary

#15437C #7C1B15 #767C15

monochromatic

#040E1A #0C2748 #15437C #1E5FB0 #307CDC

Accessibility & contrast

On white

9.88

#15437C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.13

#15437C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #15437C

9.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##15437C	#FFFFFF	#000000	##FFFFFF
##15437C	1.00	9.88	2.13	9.88
#FFFFFF	9.88	1.00	21.00	1.00
#000000	2.13	21.00	1.00	21.00
##FFFFFF	9.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#25487E

Deuteranopia (green-blind)

#103F7B

Tritanopia (blue-blind)

#005159

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #15437c;
/* rgb */ color: rgb(21, 67, 124);
/* oklch */ color: oklch(38.5% 0.109 255.9);

Tailwind

colors: {
  custom: {
    50: '#6576a2',
    500: '#15437c',
    950: '#000000',
  },
}

SCSS

$custom: #15437c;
$custom-light: #6576a2;
$custom-dark: #000000;

JSON

{
  "hex": "#15437c",
  "rgb": {
    "r": 21,
    "g": 67,
    "b": 124
  },
  "hsl": {
    "h": 213.204,
    "s": 71.034,
    "l": 28.431
  },
  "oklch": {
    "l": 0.38508,
    "c": 0.1086,
    "h": 255.9
  },
  "luminance": 0.05629
}

Semantic roles & 50–950 ramp

primary

#15437C

secondary

#B17D3C

accent

#9E3AEE

background

#F6F7FA

surface

#EBEDF3

border

#C6C8CD

text

#06080F

muted

#7A7B7F

Preview Lab

Preview with #15437C

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →